Buckling analysis of rectangular composite plates with rectangular cutout subjected to linearly varying in-plane loading using fem

作者：Narayana A Lakshmi; Rao Krishnamohana^*; Kumar R Vijaya

来源：Sadhana : Academy Proceedings in Engineering Sciences , 2014, 39(3): 583-596.

DOI：10.1007/s12046-014-0250-9

• Buckling
• rectangular cutout
• linearly varying in-plane load
• boundary conditions symmetrically laminated rectangular composite plates
• finite element analysis
• quasi-isotropic

A numerical study is carried out using finite element method, to examine the effects of square and rectangular cutout on the buckling behavior of a sixteen ply quasi-isotropic graphite/epoxy symmetrically laminated rectangular composite plate [0 degrees/+45 degrees/-45 degrees/90 degrees](2s), subjected to various linearly varying in-plane compressive loads. Further, this paper addresses the effects of size of square/rectangular cutout, orientation of square/rectangular cutout, plate aspect ratio(a/b), plate length/thickness ratio(a/t), boundary conditions on the buckling bahaviour of symmetrically laminated rectangular composite plates subjected to various linearly varying in-plane compressive loading. It is observed that the various linearly varying in-plane loads and boundary conditions have a substantial influence on buckling strength of rectangular composite plate with square/rectangular cutout.

• 出版日期2014-6